{
  "ods_table": "goods_stock_summary",
  "ods_fields": {
    "sitegoodsid": "（待补充）",
    "goodsname": "（待补充）",
    "goodsunit": "（待补充）",
    "goodscategoryid": "（待补充）",
    "goodscategorysecondid": "（待补充）",
    "categoryname": "（待补充）",
    "rangestartstock": "（待补充）",
    "rangeendstock": "（待补充）",
    "rangein": "（待补充）",
    "rangeout": "（待补充）",
    "rangesale": "（待补充）",
    "rangesalemoney": "（待补充）",
    "rangeinventory": "（待补充）",
    "currentstock": "（待补充）",
    "source_file": "ETL 元数据：原始导出文件名，用于数据追溯",
    "source_endpoint": "ETL 元数据：采集来源（接口/文件路径），用于数据追溯",
    "fetched_at": "ETL 元数据：采集/入库时间戳，用于口径对齐与增量处理",
    "payload": "ETL 元数据：完整原始 JSON 记录快照，用于回溯与二次解析",
    "content_hash": "ETL 元数据：对业务字段计算 SHA256，用于变更检测与去重"
  },
  "dwd_fields": {}
}